● orca are the strongest predators, let's control orca and catch sharks that are ruining the sea near them. The caught sharks can be fed in the aquarium. If you catch a lot, it will be converted into points. ● You can feed sharks in the aquarium, and if you bite them, you can get points for each rarity and size. Feed plenty of sharks. ● When you collect points, you can purchase friends of marine mammals. Let's swim in the aquarium together. You can also purchase a wealth of background images. ● Even if you have trouble catching sharks, you can swipe the food with your finger to feed it. Food will recover in time. ● Equipped with AR function. You can swim orca in your room.